5000 | K | × | 50 100 | − | 5000 | K | × | 15 100 | − | 5000 | ( | 1 | + | K | ) | × | 8 100 | × | 20 100 | = | 0 |
方程左边 = | 2500 | K | − | 750 | K | − | 80 | ( | 1 | + | K | ) |
= | 1750 | K | − | 80 | ( | 1 | + | K | ) |
1750 | K | − | 80 | ( | 1 | + | K | ) | = | 0 |
方程左边 = | 1750 | K | − | 80 | × | 1 | − | 80 | K |
= | 1750 | K | − | 80 | − | 80 | K |
= | 1670 | K | − | 80 |
1670 | K | − | 80 | = | 0 |
1670 | K | = | 0 | + | 80 |
1670 | K | = | 80 |
K | = | 80 | ÷ | 1670 |
= | 80 | × | 1 1670 |
= | 8 | × | 1 167 |
K | = | 8 167 |
K | = | 0.047904 |